Hasn't been hot in here for the past 2 weeks, the heatwave thing is out dated.
Isn't that unheard of for April snow... This is the first December I remember having snow, I find that a more concerning happening.
I agree with the comments on that, that it's hail. We had quite bad (for us) thunderstorms earlier this week, same time I mentioned it, someone else in the UK but quite far away on this forum also mentioned the thunder.